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8439650 Flow-controllable cell pump with pivotable control slide valve  
A flow-controllable cell pump having a bearing element that may be positioned in a receiving shell of a pump housing such that the receiving shell may assume an operational connection with at least...
8439659 Eccentric screw pump with split stator  
An eccentric screw pump has a plurality of segments extending along an axis and together forming a tubular casing generally centered on the axis and a plurality of axially extending stator shells...
8439859 Catheter device  
The catheter device comprises a drive shaft connected to a motor, and a rotor mounted on the drive shaft at the distal end section. The rotor has a frame structure which is formed by a screw-like...
8439660 Screw compressor having a second meshing body with at least one projection non-uniformly arranged with respect to the other projections in circumferential direction  
A screw compressor comprises a first meshing body and a second meshing body. The first meshing body has plural helical flutes disposed around a first rotating shaft. The second meshing body has...
8439661 Power take-off for compressors  
A power take-off for compressors, comprising: a first rotating element (2), predisposed to be connected on command to a motor (40); at least a second rotating element (3), kinematically connected...
8439662 Vane air motor  
A vane air motor configured to prevent uneven wear of vanes is provided. The vane air motor has a cylindrical member having a rotor chamber (19) defined by a circular cylindrical inner peripheral...
8439658 Progressing cavity pump rubber reinforcement device for rotor alignment  
A progressing cavity pump assembly utilizes a reinforced upper section of the stator rubber helix. The pump stator is located at the end of a string of tubing. The reinforced upper section of the...
8434449 Rotary piston device having interwined dual linked and undulating rotating pistons  
Axially protruding, centrally cooled pistons rotate around a stationary primary rotation axis within a cylindrical piston chamber. The pistons are held on both of their axial ends by concentrically...
8435014 Hermetically sealed scroll compressor  
In the hermetically sealed scroll compressor, an injection pipe for injecting a fluid to a compression chamber is connected to an injecting port of a fixed scroll. The injecting port includes a...
8435020 Oil-free screw compressor  
A screw compressor (10) is provided with shaft seal sections (28, 41) located on opposite sides of a compression chamber (24) of a screw rotor (25), to prevent mixing of oil in bearings (27, 39,...
8435016 Vertical shaft pumping system with lubricant impeller arrangement  
A vertical shaft pumping system includes a hollow shaft with an inner bore, an inlet end and an outlet end, the outlet end with at least one liquid distribution hole. It further includes an...
8435367 Fixed head insulated glass edge sealing device  
An insulated glass secondary edge sealing device that dispenses sealant to insulated glass units including at least two panes of glass separated by a spacer, including a fixed sealant dispensing...
8430656 2 stage rotary compressor  
The present invention provides a 2 stage rotary compressor including a hermetic container (101), an electric motor (110) composed of an stator (111), a rotor (112) and a rotation axis (113), a low...
8430657 Pump having modular shaft bearings and seals  
An external gear pump including seals, bearings, bushing/seal housings, choke collars and shafts that are all removable for maintenance and/or replacement without removing either endplate or...
8430645 Two stage pressure regulation system for variable displacement hydraulic pumps  
A pump having a housing with an actuator member positioned inside for controlling the flow generated by the pump. A first decrease port is connected to the housing and has a surface area in...
8424504 Rotary piston internal combustion engine  
A rotary piston internal combustion engine of the Wankel type has a housing (1) with a two lobed epitrochoidal inner peripheral surface (14) a shaft (8) journalled in end casings (3, 4), a rotor...
8425206 Pump insert  
A pump insert of a vane-type pump having no dedicated housing, the insert being inserted in a gear housing.
8425211 Positive displacement machine according to the spiral principle  
In a positive displacement machine for compressible media, having a spiral-shaped feed chamber (11) arranged in a housing (7b) between cylinder walls (14, 15), a spiral-shaped displacement body is...
8424505 Variable-volume rotary device, an efficient two-stroke spherical engine  
The subject of the invention is a variable-volume rotary device with a housing (1) comprising an inner spherical cavity, inlet and exhaust ports and a bypass flow path. Within the housing (1) a...
8425212 Positive displacement flowmeter and helical gear  
Flowmeter with a pair of helical gears using an oval pitch curve as a reference rack tooth profile. The tooth height ratio of the reference rack tooth profile is π/4. The reference rack tooth ...
8425210 Two-setting variable-eccentricity vane pump  
A variable-eccentricity vane pump having a rotor fitted with blades; an adjusting ring housing the rotor; elastic means for forcing the adjusting ring into a maximum-eccentricity position with...
8419393 Compressor having bearing assembly  
A compressor may include a shell, a compression mechanism, a drive shaft, and first and second bearing housing assemblies. The compression mechanism may be supported within the shell and the drive...
8419399 Roots type gear compressor with helical lobes having communication with discharge port  
A gear compressor or supercharger for compressing compressible fluids such as air, having a pair of intermeshing helical lobed rotors. An aperture is provided on the bottom of the compressor, at a...
8419397 Screw compressor  
A screw compressor includes a casing, a screw rotor and a gate rotor. The casing has a cylinder. The screw rotor is cylindrical-shaped and configured to be fitted into the cylinder. The gate rotor...
8419392 Variable displacement vane pump  
A variable displacement vane pump having various construction arrangements, including a low pressure supply passage constantly connecting an inlet passage and an other of a first fluid pressure...
8419394 Hermetic compressor including a backflow preventing portion and refrigeration cycle device having the same  
To a hermetic compressor and a refrigeration cycle device having the same, an oil separator for separating oil from a refrigerant discharged from a compression unit is added. Separated oil is...
8419395 Compressor and refrigeration apparatus  
A compressor includes a compression mechanism having lower and upper stage compression chambers. Refrigerant compressed in the lower-stage compression chamber is further compressed in the...
8419396 Vane pump and evaporative leak check system having the same  
An upper casing receives a rotor, which is rotated by a drive force of a motor. The upper casing includes a pump chamber, which receives the rotor, a planar surface portion, which is formed around...
8419398 Method and apparatus for managing fluid flow within a screw pump system  
In a pump system, a process fluid is directed into inlet chambers of a pump casing at an inlet pressure, and a plurality of rotors disposed inside the pump casing are rotated to pump the process...
8408179 Rotary piston combustion engine  
Combustion engine (10) comprising a stator (11) provided with a compartment (16), inside which a rotor (20) is mounted rotatable, which comprises two parts (22, 23) each comprising a peripheral...
8408888 Scroll compressor having relief ports to open first and second compression chambers  
A compression mechanism is provided with a first relief port opening only to a first compression chamber, a second relief port opening only to a second compression chamber, and a third relief port...
8403655 Scroll compressor having an allowable angle of rotation  
A scroll compressor that suffers no decrease in compression performance due to leakage resulting from a twisting assembly error is provided. This scroll compressor includes a fixed scroll and an...
8403656 Vane pump consisting of a two-part stator  
A rotary displacement pump includes a stator (42) fixed in a housing (20), a rotor including a shaft portion (8), a radially protruding web (12), a scraper (110) having an engagement slot (112)...
8402649 Scroll member, method of manufacturing same, compression mechanism and scroll compressor  
A method of manufacturing a scroll member includes a casting step and a cutting step. In the casting step an iron casting having a spiraling part is formed. In the cutting step, the iron casting...
8398387 Fluid machine and refrigeration cycle apparatus  
A fluid machine (101) includes a first compressor (107) and a second compressor (108). The first compressor (107) has a first closed casing (111), a first compression mechanism (102a), an expansion...
8398386 2 stage rotary compressor  
A 2 stage rotary compressor is provided that includes a hermetic container that defines an outward appearance of the compressor; a 2 stage compression assembly provided in the hermetic container,...
8398388 Vane pump  
A vane pump may include an oval fixed portion of which an outer circumference may be oval, a rotation ring that may be rotatably disposed outside of the oval fixed portion with a gap and in which...
8393882 Scroll compressor with rotary discharge valve  
A scroll compressor is provided and may include an orbiting scroll member having an orbiting end plate and an orbiting spiral wrap extending from the orbiting end plate. The scroll compressor may...
8393151 Flow rate control device of hydraulic pump in power steering system  
A flow rate control device of a hydraulic pump in a power steering system, may include an upper cam ring having a cam profile, which is fixedly installed, a lower cam ring having a cam profile,...
8388322 Electronic fuel pump  
A fuel pump for deployment in a fuel system for an internal combustion engine comprises a 3-phase brushless direct current motor, a sling vane impeller with blade-shaped sling vanes, sensorless...
8388328 Rotary pump and brake device in which rotary pump is provided  
In an inner wall surface of a casing, grooves are formed that correspond to end faces of an outer rotor and an inner rotor, and seal members are disposed within the grooves, the seal members...
8388327 Progressing cavity pump with several pump sections  
A progressing cavity pump comprises at least an inner pump rotor enclosed by at least an outer pump rotor so as to collectively form one or more, in principle, separate pump cavities which,...
8387648 Device for dividing a flow equally between two or more objects  
Device for equalizing a liquid flow in a flow taking place through a device formed of at least two liquid-moving elements located on shafts (10, 11), in which case the flow channel is formed of a...
8382461 Vane cell pump and impeller having a chamber wall with a projecting web  
An impeller for a vane cell pump includes, but is not limited to vane receptacles for receiving an at least radially movable pump vane. A chamber wall is formed between two adjacent vane...
8382462 Vane pump with circulating oil supply passage  
An oil supply groove in communication with a pump room is formed above a bearing of a housing, and an open air groove in communication with atmospheric air is formed at a position rotated around...
8376724 Gear pump enabling efficient pump capacity change  
An oil pump includes a drive gear, which rotates with a drive shaft, a driven gear, which meshes with the drive gear and is supported rotatable on a driven shaft, and a casing having a pump...
8375720 Plasma-vortex engine and method of operation therefor  
A plasma-vortex engine (20) provided. The engine (20) consists of a plasmatic fluid (22) circulating in a closed loop (44) encompassing a fluid heater (26), an expansion chamber (30), and a...
8376725 Planetary rotation machine  
A planetary rotation machine including at least one ring channel which is curved along an at least partial arc and that contains a piston that can be moved in a fluid generating a movement. The...
8376720 Outer ring driven gerotor pump  
A gerotor pump includes an inner ring and an outer ring. The inner ring is rotateable about an axis, where the inner ring has an outer diameter contact surface. The outer ring has an inner diameter...
8371834 Anti-self rotation mechanism of a scroll fluid machine  
An anti-self rotation mechanism for preventing self-rotation of the eccentric shaft includes a long orbiting key formed at an end of the eccentric shaft, a ring formed of a long hole through which...